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    12KV high-proto type high altitude vacuum contactor12KV high-proto type high altitude vacuum contactor12KV high-proto type high altitude vacuum contactor12KV high-proto type high altitude vacuum contactor12KV high-proto type high altitude vacuum contactor
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12KV high-proto type high altitude vacuum contactor

EVC8G series high-proto type high voltage vacuum contactor, selected the high-quality vacuum switch tube of the military factory. The structure is composed of metal frame and insulating bracket, which is firm and reliable, and the performance is more stable. The main circuit center can reach 190mm~210mm. The main circuit vacuum interrupter adopts solid-sealed structure, stable and reliable insulation performance, large creepage distance along the surface, large stroke and strong breaking capacity. It is suitable for plateau and high altitude of 4000 meters below sea level. It is used for remote access, analysis and frequent start and control of AC motors, transformers and capacitors in altitude area. There are two kinds of electromagnetic mechanism and permanent magnet mechanism.


Model recommended against altitude:

Altitude(m)

Model 

Pole Distance(mm)

≤2000

EVC8C-12kv

165

2000~3000

EVC8G-12KV-T4(190)

190

3000~4000

EVC8G-12KV-T5(210)

210

4000~5000

EVC8C-24KV

250


Main electrical parameters:

Model EVC8G-250A/12KV EVC8G-400A/12KV EVC8G-630A/12KV EVC8G-800A/12KV EVC8G-1000A/12KV
Rated voltage of the main circuit (kV) 12 12 12 12 12
Rated current of the main circuit (A) 250 400 630 800 1000
Closing capacity of the main circuit (A/100 times) 2500 4000 6300 8000 8000
Switching capacity of the main circuit (A/25 times) 2000 3200 5000 6300 6300
Breaking capacity limit (A/3 times)  4000 4500 6300 8000 8000
Mechanical life (ten thousand times)  100 100 100 100 100
Mechanical lock life (ten thousand times)  10 10 10 10 10
Electrical life (AC3) (ten thousand times)  25 25 25 25 25
Electrical life (AC4) (ten thousand times)  10 10 10 10 10
Power frequency withstand voltage of the main circuit (interrupted) (kV)  52/60 52/60 52/60 52/60 52/60
Phase-phase, phase-ground power frequency withstand voltage (kV)  52/60 52/60 52/60 52/60 52/60
Lightning impulse withstand voltage (kV)  85 85 85 85 85
Power frequency withstand voltage of the control circuit (kV)  2.5 2.5 2.5 2.5 2.5
Rated operating frequency (times/hour)  100 100 100 100 100
Mechanical lock operation frequency (times/hour)  120 120 120 120 120
Terminal pressure (N)  >100 >150 >150 >180 >180
Contact opening distance (mm)  7±0.5 7±0.5 7±0.5 7±0.5 7±0.5
Overtravel (mm)  1.5±0.5 1.5±0.5 1.5±0.5 1.5±0.5 1.5±0.5
Contact resistance of the main circuit (μΩ)  ≦200 ≦150 ≦100 ≦150 ≦100
Total weight (kg) 50 50 50 52 52


EVC8G-12KV-T4 (190mm)




EVC8G-12KV-T5 (210mm)


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